Colostrum and Milk Replacers p339-373

Question 1

What are the differences between colostrum supplements and colostrum replacements?

Answer 1

Colostrum supplements - provide exogenous IgG to calves supplement poor-quality maternal colostrum; 25-60 g of IgG

Colostrum replacement - designed to be fed instead of maternal colostrum; minimum of 100 g/dose

Question 2

There are different ways that Igs can be derived. Describe these?

Answer 2

Igs can be derived from spray-dried bovine colostrum or spray-dried bovine serum.

Colostrum-derived CR products are collected from grade A dairies and assembled at a manufacturing plant.

Serum-derived CS products are collected from abattoirs under USDA inspection.